Use of heavy dark oil components as catalyst in oxidative purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans, catalyst based of heavy dark oil components from hydrogen sulphide and light mercaptans

Abstract

Use of heavy dark components of oil, whose residue after distillation of fractions boiling out under 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal, as a catalyst during oxidative purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans. The catalyst is selected from heavy dark components of oil. A method of purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans by its oxidation with air oxygen or oxygen-containing gas at temperatures from 55 deg.C. to 135 deg.C. in presence, as a catalyst, of heavy dark components of oil, whose residue after distillation of fractions boiling out up to 350 deg.C. contains copper and vanadium total not less than 0.005 mass % counted on pure metal.

1 . A method of purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans, comprising the step of using heavy dark components of oil with a boiling temperature above 350 deg. C. as a catalyst. 
     
     
         2 . A method according to  claim 1 , wherein the heavy dark components of oil contain compositions of copper not less than 0.005 mass % counted on pure metal. 
     
     
         3 . A method according to  claim 1 , wherein the heavy dark components of oil contain compositions of vanadium not less than 0.005 mass % counted on pure metal. 
     
     
         4 . A method according to  claim 4 , wherein the heavy dark components of oil contain composition of copper and vanadium with total quantity not less than 0.005 mass % counted on pure metal. 
     
     
         5 . A catalyst for purification of hydrocarbon composition from hydrogen sulphide and light mercaptans, containing complexes of transitional metals with nitrogen-containing heterocycles, characterized in that the catalyst is selected from residual dark products of processing of oil, in particular a residue after distillation of a fraction which boils out below 350 deg. C. 
     
     
         6 . A catalyst according to  claim 5 , characterized in that it contains compositions of copper not less than 0.005 mass % counted on pure metal. 
     
     
         7 . A catalyst according to  claim 5 , characterized in that it contains composition of vanadium not less than 0.005 mass % counted on pure metal. 
     
     
         8 . A catalyst according to  claim 5 , characterized in that it contains composition of copper and vanadium with total quantity not less than 0.005 mass % counted on pure metal. 
     
     
         9 . A method of oxidative purification of hydrocarbon compositions from hydrogen sulphide and light mercaptans in presence of a catalyst which contains complexes of transitional metals with nitrogen-containing heterocycles, characterized in that as a catalyst heavy dark components of oil are used with boiling temperature above 350 deg C., and a process of oxidation is conducted at temperature 55-135 deg. C. in presence of oxygen which is dissolved in the hydrocarbon composition. 
     
     
         10 . A method according to  claim 9 , characterized in that the heavy dark components of oil contain composition of copper not less than 0.005 mass % counted on pure metal. 
     
     
         11 . A method according to  claim 9 , characterized in that the heavy dark components of oil contain compositions of vanadium not less than 0.005 mass % counted on pure metal. 
     
     
         12 . A method according to  claim 9 , characterized in that the heavy dark components of oil contain compositions of copper and vanadium with total quantity of not less than 0.005 mass % counted on pure metal.